I have a 70 chevelle and ive done a pretty good bit of lookin around at all the different types and styles of IRS. I havent completely decided yet, and i was wounderin if anybody could help me out on another question i have. I looked at the Corvette IRS from progressive automotive and the IRS from kugel komponents. Both are aluminum, and the only difference between the two is that the Corvettes put brakes on the hubs, whereas Kugel makes one with the brakes located right at the output shafts. does anybody know which would be the better selection, or would either do just as good for street applications???

Is there any specific year Jag to remove the rear from which may or may not make a difference?
As I haven't set aside any $$$ for the IRS system I had wanted a month or so ago using the IFS S-10 parts and K-3500 diff carrier and a few mildly modified parts, this seems to be another viable option.
I haven't seen any Jags in the boneyards I frequent as of yet, but I wasn't looking either.

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The Jag has the Chevy bolt pattern but the center hub is too large. I had to machine about 1/16" (1/8 diameter) to match the chevy hub. The Jag also uses a Dana 44 (early) or Salisbury (late) but both use Dana44 gear sets. I have a front and rear suspension from an 82 XJ-6 that i am purtting in my Willys. Most have limited slip but 2.88 gears. i put a 3.54 in it that I took out of a used Dana 44 from a Chevy truck.

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